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(No modem I H. N. S-TAATS. Apparatus for Propelling Row Boats.

No. 235,822. Patented Dec. 21,1880.

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H. N. STAATS. Apparatus for Propellin'g Row Boats.

No. 235,822. m Patented Dec. 21,1880.

UNITED STATES PATENT OFFICE.

HENRY N. STAAIS, OF AUBURN, NEW YOR'K.

APPARATUS FOR PROPELLING ROW-BOATS.

SPECIFICATION forming part of Letters Patent No. 235,822, dated December 21, 1880.

Application filed October 8, 1880. (No model.)

To all whom it may concern Be it known that I, HENRY N. STAA'ls, of Auburn, in the county of Cayuga, andin the State of New York, have invented certain new and useful Improvements in Apparatus for Propelling Row-Boats; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a part of this specification, in which Figure 1 is a perspective view of the rear portion of a boat provided with my propelling mechanism. Fig. 2 is a side elevation of the stern of said boat, showing the propeller in its normal position. Fig. 3 is alike view of the same, showing the unshipping mechanism in position for use 5 and Fig. 4 is a perspec' tive view of said parts after said propeller has been unshipped.

Letters of like name and kind refer to like parts in each of the figures.

The design of my invention is to render practicable the use of a screw-propeller upon small boats; and it consists in the means employed for unshippin g the propeller-wheel, substantially as and for the purpose hereinafter specified.

In the annexed drawings, A represents a boat provided within its interior with a propeller-shaft, B, which projects through the stern of said boat and has secured to or upon its end a screw-propeller, O, of usual form, which, by the rotation of said shaft, will cause said boat to move longitudinally, the direction in which said shaft and propeller are rotated determining the direction in which said boat will b moved.

In order that the propeller (J may be readily unshipped when liable to become injured by contact with the ground in shallow water the following described mechanism is employed, viz: J ournaled by means of an encircling strap, d, upon vthe hub c at the front side of the propeller O is a rod, D, which extends upward, and at its upper end is threaded and provided with a nut, 01. Loosely encircling the rod D above the strap dis a sleeve, E, which, by means of two horizontal lugs, e and e, is connected with a rod, F, that extends from or near the top of the stern Gr downward through two rearward-extending bars, g, that furnish pivotal bearings for the rudder H, and has at its lower end a socket, f, that fits over a stud, b, which projects upward from the rear bearing, b, of the propeller-shaft B. The socketfis made to fit the setscrew c, which confines the propeller 0 upon its shaft B, and when it is desired to unship said propeller the rod F is raised from offthe stud b and moved rearward until it can be engaged with said set-screw, when the latter is loosened by the turning of said rod, and said propeller slips off from said shaft, after which said rod is returned to engagement with said stud I), and said propeller is permitted to swing loosely from the rod 1). In order to permit of the rearward motion of the rod F the bars 9 are slotted longitudinally a distance equal to the movements of said rod.

Having thus fully set forth the nature and merits of my invention, what I claim as new 1s- As a means for unshipping the propellerwheel 0, the strapcLjournaled upon the hub c of said wheel, the rod D, extending upward from said strap and having upon its upper threaded end the nut d, the sleeve E, and the rodF, provided with the socket f and connected by means of the lugs c and c with said sleeve, said parts being combined with each other, the bars 9, the stud b, and the set-screw c, substantially as and for the purpose specified.

In testimony that I claim the foregoing I have hereunto set my hand this 14th day of August, 1880.

HENRY N. STAATS.

Witnesses:

GEO. S. PRINDLE, HoRAoE '1. 000K. 

